Senior Java Backend Engineer - Hybrid (Porto)

KCS IT; Porto; Hybrid; EUR 42,000 - 54,000; Full time

Job summary

KCS IT in Porto, Portugal, is seeking an experienced Java Backend developer to join our hybrid team. You will work on backend services using Java 8+ with Spring Boot, RESTful APIs, and microservices, collaborating with cross-functional teams.

The ideal candidate has 4–5 years of proven backend experience, knowledge of SQL and NoSQL databases, CI/CD practices, and cloud familiarity (AWS/GCP/Azure). Fluent English is required to communicate in an international environment.

Qualifications

• Minimum 4–5 years of proven backend development experience.
• Strong knowledge of Java and Spring frameworks.
• Experience with relational and non-relational databases and RESTful APIs.
• English fluency required.

Skills

Java

Spring Boot

English (Fluent)

RESTful APIs

Microservices

CI/CD

Git

JUnit / Mockito

DevOps concepts

Maven

Hibernate

PostgreSQL

MySQL

MongoDB

GitLab CI

Jenkins

Docker

Kubernetes

AWS

GCP

Azure

Tools

Maven

Hibernate

PostgreSQL

MySQL

MongoDB

GitLab CI

Jenkins

Docker

Kubernetes

AWS

GCP

Azure

Job description

KCS IT in Porto, Portugal, is seeking an experienced Java Backend developer to join our hybrid team. You will work on backend services using Java 8+ with Spring Boot, RESTful APIs, and microservices, collaborating with cross-functional teams.

The ideal candidate has 4–5 years of proven backend experience, knowledge of SQL and NoSQL databases, CI/CD practices, and cloud familiarity (AWS/GCP/Azure). Fluent English is required to communicate in an international environment.